Method and apparatus for plate cooling and finishing



R. T. JOHNSTON.

METHOD AND APPARATUS FOR PLATE COOLING AND FINISHING.

APPLlcAnoN FILED SEPT. 6, 191s.

1,389,361 Panted Aug. 30, 1921,

N 4 SHEETS--SHEET l.

uNvE-NTQR Amman:

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n.1.1oHNsT0N- METHOD AND APPARATUS FOR PLATE COOLING AND FINISHING.

APPLICATION FILED SEPT. 6, T918. 1,389,361 f Patented Aug. 30, 1921.

4 SHEETS-SHEET 2.

R. T. JOHNSTON. METHOD AND APPARATUS PoR PLATE cooLlN AND FINTSHING.

APPLICATION FILED SEPT. 6, ISIS.

Patented Aug. `30

INVENTOR 4 SHEETS-SHEET 3.

B. T. JOHNSTON. METHOD AND APPARATUS FOR PLATE COOLING AND FINISHING.

e a wmmwmmmmm Fatemi-:ed Aug. 30, l1.921.

APPLiCATlON FILED SEPT. 6,1918.

Unirse STATES PATENT OFFICE.

ROBERT T. JOHNSTON, OF SCOTCH PLAINS, NEW

JERSEY, ASSIGNOR T0 R. HOE' AND C0., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METHOD AND APPARATUS FOR PLATE COOLINGAND FINISHING.

isaeei.

1 Application filed September 6, 1918.

.Apparatus for Plate Cooling and Finishing, fully described and represented in the :following specification and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in method and apparatus for plate cooling and finishing.

It is the especia] object of the invention to produce a machine in which a stereotype plate is cool'edby contact :with a cooling fluid, and then iinished` after it hasbeen cooled, so that the nishing operation is performed on a plate which has solidified or set to its final form. l

A further object of the invention is to provide a machine in whichv the ytail piece formed on the plate during the casting operation is removed while thev plate is het orr warm and before the plate iscooled.

It is a further object of the invention to produce a machine in which the'plate is rotated .in contact with a coolingfluid so-that the plate may be cooledfby contact with the cooling duid in a comparatively small 1 space, thus economizingin the sizeoifztii Yfor it in the press room and making it convenient and accessible to the operator.

produce a machine in which a plate maybe held in a rotary carrier and subjected to` cooling', drying and iinishing while rotating'l in the carrier. Y.

A further obliect of the invention is to produce a machine in `which tact with" a cooling fluid `and then finished,

and in which the plate is automatically fed; to the cooling and finishing mechanism andproper position' with relation Fig. l.' A further object of the .invention is tol registered in thereto.

produce a machine in which the use of @Specification of Letters Patent.

Staken Online 3 3 of Fig;

-talreno'nline 4-4 of Fig;

cooling Huid, the View lin section, and partly machine and economizing in space required .taken on vthe' line 7-7 It is a further object'of the invention to a plate may be brought into position to be cooledby conf A,Patented Aug. 30, k1921.

1 Serial No'. 252,887.

cally referred toin view, the invention consists in certain. parts and combinations which' will be'specifically described in the accompanying drawings, in which:

Figure l isy aside elevation, partly in section and partly broken awa-y, of the machine.

the driving connections, this section bein taken onk the line 2-2 o'Fig. l;

Fig. 3 is a. plan view, partlyn section, of the'drivingconnectiona the View vbeing Figa is a cross sectional a somewhat enlarged scale, illustrating' .the platefeeding mechanism, the section being Fig. v5 is a sectional viewthrough the cooling and iinishing cylinder, showing the finishing knife and the means .for preventing chips fromcoming in contact with the being taken on line 5-5 O'tFig. l; ,l Fig. 6 is a horizontal plan view,y partly broken away, taken on the line 6-6 of lig. 5;

Fig. 7, isi a vertical longitudinal section of Fig. 5, partly broken away, of thev construction shown in Fig. 6, lookingl in the direction of arrow A of Fig. `5; g

Figs. 8, 'Sl-and l0 are end views, partly in Fig.. 2 is a sectional end view showingV detail View on section and partlyv brken away, showing? Themachine shown in the drawings includes generally a standard or receiver' vtral guide 8.-

on which the hot unfinished plates are deposited by the machine attendant, and cooling and finishing mechanism to which these plates are automatically fed and in which mechanism the plates are clamped in position to have the tail pieces removed, cooled by contact with the cooling fluid, and then finished and delivered from the cooling and finishing mechanism to a suitable delivery. rThe specific mechanisms by which these various operations are effected may, of course, be widely varied in construction within the scope of the appended claims, but the machine shown is an efl'ective one for performing these functions, and will now be described in detail.

Referring to the drawings, the various parts of the mechanism are supported `by suitable frames l, 2 rising from any suitable support, as bases 3, A1. Supported by the frames 1, 2 are standards 5, 5 which are the receiving and delivery standards respectively. '1`hese standards are provided with side ledges 6 on which the straight edges of the plates rest. rllhe receiving standard 5 is formed with a central guide 8 and the receiving standard 5 is formed with a cen- On these guides reciprocates a feeding mechanism, hereinafter referred to, by which the plates are fed from the receiving stand 5 to the cooling and finishing devices, and from the cooling and finishing devices to the delivery stand 5.

The cooling and finishing devices as shown are so constructed that the plate is first cooled and then finished in cooled or solid condition. Machines constructed in accordance with the invention will include what may be termed a cooling and finishing cylinder, which is marked generally 9. This cylinder in the particular construction illustrated comprises a rotary shell or vcarrier 10 supported in suitable bearing frames 11 (see Fig. 1) mounted in standards 12 bolted or otherwise secured to the side frame 1 of the machine. rhis cylinder acts as a carrier to carry the plates so that they may be cooled by contact with the cooling fluid and then finished, this finishing consisting in shaving the inside of the plate out to a predetermined size or thickness. 1n machines Vembodying the invention in its preferred form, this cylinder will be capacitated to carry two plates around, one plate being finished while the succeeding plate is moved to Contact with the cooling fluid. Means are Vprovided for automatically locking the plates in the shell so that they will be held rigidly in position while being cooled and finished and unlocking them after finishing so that theyinay be removed from the cylinder. 1n the particular construction illustrated for effecting this, the cylinder is provided with a pair of guides or ledges 13, 141 (see Figs. 2 andV 8 to 10, inclusive) which extend longitudinally of the finishing cylinder. These ledges form tracks on which the plate is fed into the cylinder and act as abutments for one edge of the plate when the plate is locked in the cylinder. The plate locking means include a pair, one on each side of the cylinder, of locking tongues 15 (see Fig. 4C) mounted to slide circumferentially of the cylinder. These locking tongues 15 are carried on slides 17 which have a sliding movement circumferentially of the shell, the slides being.Y held in position by being undercut and working in undercut grooves 16, one of which is shown in Fig. 1, formed in the sides of the cylinder. These tongues project inwardly through slots into the path of one of the straight edges of the plate, one of the ledges being cut away to accommodate the tongue as shown at 15. These tonguesact, when in locked position, to hold the plate firmly against'the interior of the shell. )While the locking and unlocking sliding movement of the locking plates, 20 may be effected in various ways, in the particular construction illustrated the locking plates are normally held in locked position by springs 18,which springs take between suitable abutments 19 on the shell, and projections 20 fon the slides.

Such .holding means is shown only between one set of abutments and projections 20 but it is to be understood that it is provided for both sets. i

The means employed for operating these slides to unlock a plate may vary widely. Asimple and effective construction Vfor effecting this, however, is illustrated, in which there is provided (see Figs. S to 10 inclu- .mally maintained in projected position by a spring 26. The striker lever has at its other end a cam roll 27 which works in a groove of a cam 28 carried on a cam shaft 29, suitably mounted in hearings 30 (see Fig. 3), in the frame of the machine. The

parts moving as illustrated by the arrows in Figs. 8 to 10,V the projection 20 hits the end o-f the striker pin 25 and forces the same into the strilrer head against the spring and as the shell continues its rotation the striker pin immediately springs behind the projection 20. The striker lever is then operated to bearon the outer side of the projection 17 and through it operate the slide 17 against the compression of the spring 18 to 'release the lock and free the plate, as shown in Fig. 9. i

Machines embodying the invention in its preferred form will include constructions whereby the carrier may be stopped after it has made a partial revolution, so that a plate may be subjected to the cooling action while it is rotating with the carrier and, if desired, while the carrier is at rest, so that during the `period of rest of the carrier a second plate may be fed to the carrier and a previously cooledr and finished plate removed therefrom. The operation of the machine will be continuous, the use of clutches for starting and stopping the carrier being done away with, a continuously running power mechanism being provided,

running at a contiuous uniform speed, with which the carrier is intermittently engaged automatically. Vhile the construction for effecting this may be varied, in the particular construction illustrated there is provided a shaft 3l suitably mounted (see Fig. l) in bearings 32 in the supports l2, before referred to. This shaft is continuously driven at a uniform speed through connections hereinafter referred to and is provided at one end with a driving gear 33. The carrier shell is automatically thrown into and out of driving engagement with gear 33 through suitable stop mechanism. While this stop mechanism may be somewhat varied, as illustrated the carrier has `fast on one end segment gears 34, 35, gaps 36 being left between the segments. Also fast on the carrier inside the segment gears, are what may be termed starting racks 38. These racks are engaged by a starting pinion 39, which moves the carrier at a predetermined time to bring the segment gears 34, 35 into engagement withthe driving gear 33. As illustrated the pinion 39'is operated from a rack 40 mounted to slide on a guide block 4l suitably secured to the frame of the machine. The raclr 40 is reciprocated by means of a link 42 attached to thev slide at one end and at its other end attached to a rock arm 43 which is pivoted at 44 to a suitable base 45 secured to the machine frame (see F ig. 2). The arm 43 carries a cam roll 46 operatingein a groove of a cam 47 on the cam shaft 29 before referred to.

Vifith this construction the carrier is automatically brought into driving engagement intermittently and automatically with a con tinuously running driving gear without the use of clutches and the carrier is driven with uniform movement. The parts. are timed so that the carrier is given a partial revolution, then stopped, during which partial revolution and stop the plate is cooled, and then again picked up and again given a partial revolution, during which the plate is finished.

Machines embodying the invention in its best form will include means for feeding the plates into the carrier automatically) and registering them in the carrier in correct position Without requiring this to be Vfeeds the plate into the ymoved from the carrier as an unfinished plate is being fed thereto. l/Vhile this may be effected in various-ways, in the machine illustrated (see Fig. 6 and Figs. 8 to ll) the receiving standV 8 beyond the end of the cylinder is provided with a guide frame 48 in which are formed guiding grooves 50 in which slides a reciprocating pawl carrier 51, and the delivery standS, hereinafter referred to, is similarly formed. This carrier 5l is recessed, as at'52, and has pivoted in the recess carrier-pawls 53 provided with notched feeding faces 54. Y These pawlsare normally sprung outwardly by springs 55 to feeding position, stops 56, against which the tails of the pawls abut, being provided to limit the movement'of the pawls. This pawlcarrier reciprocates the length of the machine and when the carrier is'reciprocated the first pawl at the left. of Fig. 4 passes beyond the rear edge of the plate. 0n the next' reciprocation of the carrier the pawl finishing cylinder and, if there has been a cooled and finished plate in the cylinder, the right hand pawl picks up the plate and removes it from the cylinder. l/Vith this construction the extent of movement of the plate into the cylinder depends on the movement of the carrier, the plate stopping when the reciprocation of the carrier is stopped. The feeding pawls, therefore, automatically position the plate in the cylinder. y Furthermore, it is only necessary for the attendant to place the plate on the feeding stand, no nice positioning of the plate being necessary, the pawls sliding beneath the surface of the plate until free of the ends, when the springs cause them to assume their feeding The means for reciprocating the pawl carrier may be varied, but as illustrated include a rack 57 fast to the underside of the carrier. This rack is reciprocated by a` gear 58 (see Fig. l) on a short shaft 59 suitably journaledinthe machine. This shaft 59 carries a driving pinion G0 which engages with a rack Gl, which slides in vertical sliding` frames 62, suitably secured to the base 3 of the machine. This rack is reciprocated `by wrist pin 63 on a crank arm 64 from position.

particular construction illustrated the plate is fed to the finishing cylinder with the tail piece or gate p foremost. The plate is fed in registered position in the finishing cylinder and clamped therein, as hereinbefore described, and the rotation of the cylinder started. To effect the cutting off of the tail piece, there is provided a rotary cutter 67 mounted on a short shaft 68 suitably journaled in the frame of the machine. T his cutter is located j ust beyond the end of the finishing cylinder' on the opposite side from which the plate is fed in and prefer, ably this cutter will be driven at high speed. As illustrated, it is driven directly from power shaft 66 of the machine through a belt 69 over pulleys 70, 7l on the shafts 66 and 68, respectively.

Various means for effecting the cooling.`

of the plate are within the limits of the present invention. In the best construction, however, a cooling bath of water is provided, the water being preferably applied to the interior of the cylinder by spraying or pouring, so as to contact with the back of the plate and cool it, and preferably the plate will be moved past this cooling means by the rotation of the carrier. concrete embodiment of the cooling devices effecting this is shown in the drawings. As shown, there is provided a main supply pipe 72 (see Figs. 4, 5 and 1l) suitably mounted in the frame of the machine, to which water is supplied through a flexible connection 72 from any suitable source, not shown. The main supply pipe 72 is provided with a number of branches 73 arranged to distribute water against the rear side of the plate as itis rotated by the carrier and, if desired, during the period in which the car4 rier is stopped after partial revolution, as hereinbefore described. rhe water may be supplied continuously during the operation of the machine, or any usual means for turning on or off of the water may be employed.

As the tail piece or gate is cut off as the carrierv rotates, and it approaches the cooling devices, means are preferablyprd vided for preventing the cooling water from wetting the gate piece. As illustrated (see Fig. 74: secured just within the end of the carrier to the frame @L8 before referred to. rfhe branch spray pipes 7 8 project through this apron and the gate piece is cut from the plate and falls on the outside of this spron and is (shown in Fig. 2) and delivered from the machine in any suitable or desired manner. The cooling fluid passes through the cylinder and is caught in trough 7 6 from which it may be removed in any suitable manner, as by pipe 77 (see Fig. 2). After the plate has been cooled by the application thereto l1) there is provided an apron vment of the pawl carrier, delivered down an incline 75 of the cooling fluid as described, the plate is preferably dried before finishing.V lVhile the means for effecting this may be varied, as illustrated it comprises perforated air pipes 7 8, these pipes 7 8 being supplied with air from any suitable source, not shown, these pipes passing through the carrier and being arranged above the spray pipes 73, so that as the wet plate passes away from the spray pipes it is dried.

After the plate has been dried it is finished by shaving out the interior of the plate to the correct diameter. By delayingthe shaving operation until after theV plate has been cooled and set to its final form, and while it is clamped in the cylinder, a very accurate shaving is effected. The particular means for effecting the shaving of the plate may be varied, but in the particular construction illustrated there is provided a shaving knife 7 9 movably secured, as by a screw bolt 80, to a block 80 secured between the stands S and S by connecting ribs 80, asclearly shown in Figs. 4 and 6, the block 80 being broken away in Fig. d for the purpose of illustra tion, but being clearly shown in Figs. 5 and 6, the shell carrying the plate being rotated past this fixed shaving knife. rThis knife shaves the interior of the plate, bringing it toits proper diameter andthickness. By this shavingv operation chips are removed from the plate, and in the best constructions means are provided for removing these chips from the machine so that they will not be wet by the cooling fluid. Vhile the specific means for effecting this may be varied, in the particular construction 'shown the chips drop into a trough 8l (see Fig. 5) having a bottom 82 and sliding wall 83, which Vhas secured thereto a scraper 83 (see full lines in Fig. 5 and dotted lines in Fig. 7) these sliding parts acting to keep the trough free of chips and to remove the chips from the side of the carrier opposite to that in which the plate entered. The movable bottom may be reciprocated in any suitable manner. For simplicity of construction, the 4pawl carrier 51, before referred to, is utilized for this purpose. As shown, (see Figs. 5 and 7) the bottom ofthe pawl carrier has secured there to a stop 84, which stop, during the reciprocation of the carrier, contacts with a projec tion 85 on wall 83 before referred to, the slide being moved forward by the pawl carrier against a spring 86, the extent of its movement being the extent of the movewhich is as shown to a point beyond the outer end of the cylinder, which returns it to position after it has removed the chips from the trough, the

"chips, as they are removed from the carrier, falling down the incline 7 5, before referred to.

rllhe driving mechanism for Voperating the various parts of the machine may be someizo f shaft 91 suitably what varied, but these means will be such that they will be automatic in operation and drive the various parts without the use of clutches. As shown, referring to Figs. 1 and 3, the machine is driven by the main power .shaft 66, before referred to, from a source of power, such as electric motor 87, the power shaft. 66 being connected with the motor by a suitable coupling 88. rlhis power shaft has secured thereto a worm 89 which meshes with a worm wheel 90 on a transverse journaled in bearings 92 in the machine frame. The shaft92 has secured at one end a bevel gear V98 which meshes with the bevel gear 94 on an oblique shaft 95, suitably journaled in bearings 96, this oblique shaft at its other end carrying a miter gear 97 meshing with a miter gear 98 on the end of the shaft 31, before. referred to, by which the finishing cylinder is driven, this yconstruction providing a continuous driving mechanism for the finishing cylinder.

The shaft 91 toward its other end carries a worm 99 which meshes with a worm wheel 100 on the cam shaft 29, before referred to, thus driving the cam shaft through which the starting and stopping movements of the finishing means are effected and the plate locking devices operated for locking and freeing the plate in the cylinder.

The plates as removed from the finishing cylinder may be disposed of in any suitable manner, as to a delivery stand 102, from which they maybe removed by hand or in any other desired manner.

The operation of the machine may be briefly described as follows:

The motor is started and the machine put in operation; a cast plate with the tail piece p is then placed by the operator on the receiving stand 5, with the tail piece extending forwardly. The pawl carrier begins its reciprocatinov movement and the first pawl 53 moves to the eXtreme left of the stand (looking at Fig. 1) passing under the plate. As soon as it passes beyond the plate the pawl springs up into feeding position and feeds the plate forward into the finishing. cylinder the required distance as the carrier again reciprocates, where it stops, leaving the plate in registered position. One of the plate locking slides is brought by the rotation of the carrier into position to be operated on by the striker lever 21, which moves the slide against spring 18 to bring the locking tongue belowv the edge of the plate as the plate moves into the cylinder, the spring then Vmoving the slide into position to lock the plate in the cylinder. The carrier is then started by pinion 39 which rotates the'carrier sufficiently to bring one of the gears 34, 35 into mesh with the driving vgear 33, and gives the carrier a partial rotation past the cooling pipes or nozzles 73 andl then is stopped. During this movement the pawl carrier has made a return movement and duringr4 the stop of the cylinder has positioned a second plate therein, which is locked through the plate locking devices. -The rotation of the carrier is then resumed and the first plate is dried Vby the drying pipe 7 8 and is then finished by the finishing knife or shaver 79. After the plate has been finished and the carrier given a full revolution, it is againstopped and the cooled and finished late unlocked. The steps by which this is eifectedare shown in Figs. 8, 9 and 10 of the drawings. In Fig. 8 the carrier is shown as having completed almost a half revolution, the carrier driving gear 35 being shown as just about to go out of mesh with the driving gear 33, and the pinion 39 is engaging with the starting rack 38 which moves the carrier to complete the half revolution and brings the parts to the position shown in Fig. 9. As there shown the pinion 39 is no longer operated as the cam roll 46 is on the idle part of the cam 47, and the carrier comes to rest, the cam being timed to allow a period of rest sufficiently long to permit the removal of a finished plate and the insertion of an unfinished one. As the carrier comes torest the cam roll 27 has run up on the high part of the cam 28 and operates the striker 25 to move the slide 17 to the left (in Fig. 9) through the projection 2O thereby releasing the top plate, which is shown in that igure as unlocked. The cam 47 continuing its movement again operates the cam roll 461to move the rack 40 which movement through the pinion 39 and the starting rack38 moves the carrier suiiiciently to bring the other carrier gear 34 into mesh with the driving pinion 83 which position is shown in Fig. V10. It will, of course, be understood that the released plate is removed from the carrier and a finished plate in 4serted therein, while the parts are in the position shown in Fig. 9, and the locking slide is in its unlocked position. At this time the pawl carrier is making its third Vforward movement and during this more ment removes the finished plate froml the iinishing cylinder and brings a third plate into position thereon, the iinshed plate beingmoved out onto the delivery stand 8.

t will be observed that while the cooling bath, finishing mechanism and drying means act in that order, in the rst instance, upon a plate, they also thereafter act simultane-V ously on the plate when the latter reaches the drying meansand continue to so act until the plate gets beyond the cooling bath. Y

machine as shown and described above has been producedwhich is continuous and automatic in operation and by which a plate is very accurately finished.

While, the described means shown for carrying out the operations are simple and l out departing from the invention as described in the claims annexed hereto.

Vhat is claimed is:

1. The combination of a cooling bath and a finishing mechanism arranged to act in that order ou a plate, and means for effecting the relative movement of a plate and said elements for such action.

2. The combination of a cooling bath, drying means and a finishing mechanism ar'- ranged to act in that order on a plate, and means for effecting the relative movement of a plate and said elements for such action.

3. rIhel combination of: a tail-severing mechanism, a cooling bath and a finishing mechanism arranged to act in that order on a plate, and means for effecting the relative movement of a plate and'said elements for such action.`

4l. The combination of a tail-severing mechanism, a cooling bath, drying means and a finishing mechanism arranged to act in that order on` a plate, and means for effecting the relative movement of a plate and said elements for suoli action.

5. The combination of means for applying a cooling [iuid to the plate, and means for then'iinishing the cooled plate.

6. The combination of a supply of cooling Huid, means for moving the plate by the fluid supply to be cooled, means for stopping the plate While being acted on by the cooling means, and means for thereafter finishing the cooled plate. p

7. The combination of means for applying a cooling liuid to a plate, means for moving a plate into position to be acted on by the cooling means, plate' finishing means, said moving means being capacitated to movea second plate into position to be acted on by the cooling means While the first plate is being finished after being cooled.

8. The combination of means for applying a cooling fluid to a plate, means for feeding a plate into position to be cooled thereby, means for finishing the cooled plate, said feeding means being capacitated to feed a second plate into position to be cooled and to remove the cooled and finished plate.

9. The combina-tionV of a supply of cooling fluid, means for rigidly holding a plate, means for positioning a plate. so that it is cooled by Contact With the cooling fluid, and means for thereafter finishing the cooled plate While it is rigidly held.

10. The .combination of la rotary carrier, of means for feeding a plate thereto, plate cooling means to which theplate is moved by the carrier, plate finishing means arranged -to finish the plate after it has been cooled, said feeding means being capacitated to feedfa second plate to the carrier, and means for removing the cooled and finished plate from the carrier While the second plate is being fed thereto.

11. The combination of a rotary carrier, means for feeding a plate thereto, means for clamping the plate to the carrier, plate cooling means and plate finishing means adjacent the carrier past which the plate is moved and by Which it is finished after it is cooled, and means for delivering the plate from the carrier.

12. The combination. of a rotary carrier, plate cooling means located adjacent thereto, means for feeding a plate to the carrier, means for rotating the carrier to move the plate past the plate cooling means, means for stopping the carrier, said feeding means being capacitated to feed a second plate to the carrier While the carrier is stopped, means for finishing the first plate after it has been cooled., and means for delivering the finishediplate from the carrier. A

13. The combination of a rotary carrier, means for feeding a plate to the carrier and for clamping it in registered position therein, means in the carrier for applying cooling luid to they back of the clamped plate as the carrier rotates, means for finishing the plate after it has been cooled, and means for removing the finished plate from the carrier.

1d. The Combination of a rotary carrier, stationary plate cooling devices and plate finishing devices past which the carrier successively moves in the order stated, means for feeding a plate into the carrier, means for clamping the plate therein, means for freeing the plate after it is finished, and means for delivering the finished plate from the carrier.

15. The combination of a rotary carrier, means for feeding a plate thereto, plate cooling means to which the plate is moved by the carrier, plate drying means, plate finishing means arranged to finish the plate after it has been cooled, and means for removing the plate` from the carrier after it has been cooled and finished.

16. rlhe combination of a rotary carrier, means for feeding a plate thereto, plate cooling means to which the plate is moved by the carrier, plate drying means, plate nishing means arranged to finish the plate after it has been cooled and dried, said feeding means being capacitated to feed a second plate to the carrier, and means for removing the cooled and finished plate from the carrier while the second plate is being thereto. Y

17. The combination of a rotary carrier, means for feedinga plate thereto, means for registering the plate on the carrier, plate cooling means to which the plate is moved by the carrier, plate finishing means arfed ranged to finish the plate after it has been cooled, and means for removing the cooled and finished plate.

13. The combination of means for cooling a plate by contactvvith a cooling fluid, means for thereafter finishing the plate, and means whereby the plate is fed to the cooling and finishing meansl in registered position.

'19. The combination of means for applying a cooling fluid to a plate, means for drying the plate, and means for then finishing the cooled and dried plate.

20. The combination of plate finishing means, plate drying means, plate cooling means, and means for rotating a plate past the finishing, cooling and drying means.

' 2l. The combination of a rotary carrier, plate finishing means, plate cooling means, and plate drying means, all located adjacent the carrier and past which a plate is rotated.

22. The combination of a rotary shell, means for clamping a plate in the shell, plate finishing means, plate cooling means, and platedrying means located Within theI shell past Which the plate is rotated by the shell.

23. The combination of a rotary. carrier, a supply of cooling fiuid for cooling the plate on the carrier into contact with which fiuid the carrier moves the plate, means for delivering the plate from the carrier, and means for feeding a second plate-to the carrier before the first plate has been removed.

2li. The combination With a rotary carrier, of a supply of cooling fluid for cooling the plate as it rotates on the carrier, means for stopping the carrier after a partial revolution, means for feeding a plate to the carrier While it is stopped, and means for removing a cooled plate from the carrier.Y

25. The combination of a rotary carrier capacitated to carry tivo plates around, means for feeding the plates to the carrier, a supply of cooling fluid into contact with which the carrier moves the plates, means for stopping the carrier after a partial revolution, means for feeding a second plate to the carrier While the carrier isk stopped, means for again starting the carrier, and means for delivering the cooled plate therefrom.

26. The combination of means for cooling a plate by contact with a cooling fiuid, means for finishing the plate, and means for preventing the chips or shavings from the plat-e from being Wet by the cooling fluid.

27. The combination with a rotary shell, of finishing and cooling means located Within the shell pastv which the plate is moved by the shell, and means for preventing chips or shavings from the plate from being Wet bythe cooling means. f

2S. The combination of a receiving stand, a rotary finishing and cooling cylinder, and

a feeding mechanism for feeding a plate from the receiving stand into the cylinder in registered position therein.

29. The combination of a receiving stand, a rotary finishing and cooling cylinder, and a feeding mechanism for feeding a plate from the stand into the cylinder and removing a finished plate therefrom.

30. rIfhe combination of a receiving stand, a finishing'and cooling cylinder, a reciprocating feeding bar, feedingfdevices carried by the bar for feeding a plate from the standinto the cylinder and removing a finished plate therefrom.

3l. The combination of a receiving stand, a finishing and cooling cylinder, and a reciprocating` feeding bar provided with spring pressed paWls for feeding a plate into the cylinder and removinga finished plate therefrom.

32. The combination of a nishing cylinder, a continuously running driver`therefor, segmental driving gears on the cylinder each vof which gives the cylinder almost a half rotation, and means for giving the cylinder a movement to complete a half rotation and then stop the cylinder.

33. The combination of a finishingcylinder, acontinuonsly running driver therefor, segmental driving gears on the cylinder each of Which gives the cylinder almost a half rotation, means for giving the cylinder a movement to complete a half rotation and then stop the cylinder, rlocking devices for locking and releasing a plate, and means for actuating the locking devices after the carrier has thus completed a full half revolutA tion.

34. The combination with a finishing cylinder, of a continuously `running driver, segment gears on the cylinder, starting racks on the cylinder, and meansV for engaging the starting racks to move the cylinder and bring the gears in engagement with the driver. n

35. The combination of a finishing cylinder, a continuously running driver therefor, segmental driving gears on the cylinder,l starting racks on the cylinder, a starting pinion, and cam operated means for causing the pinion to engage the racks and bring the gears in engagement with the driver.

36. The combination of a finishing' cylinder, stationary ridges on the cylinder on which the straight edges of the plates rest, movable tongues for lifting the plates along the ridges and locking them in the cylinder. slides on Which the tongues are carried, and means for operating the slides circumferentially of the cylinder.

37. The combination With a finishing and cooling cylinder, of means for cooling a plate in the cylinder by contact therewith of a cooling fluid, means for finishing the plate after it has cooled, means for preventing the chips from coming into contact With the cooling fluid, and means for renewing the chips. l

3S. The combination with a cooling and finishing cylinder, of means for wetting a plate in the cylinder to cool the plate, means for finishing the cooled plate, a trough into which the chips are directed from the finisher, and means for removing the chips from the trough.

,39. The combination of a `continuously ruiming driver, a cutter for removing the tail piece 'from the plate, a shaft therefor, driven at the shaft speed of the driver, a finishing mechanism, continuously driven operating means for driving the finishing mechanism from the driver at a lower shaft speed, means for stopping the `finishing mechanism after a partial movement thereof, and means operated from the driver for automatically starting the finishing mecha nism after it has been stopped,

40. The combination of a cooling bath and a finishingmechanism arranged to act in that order on a plate, and a rotary carrier for moving a plate past the same.

41. The combination of a cooling` bath, drying means, and a nishing mechanism arranged to act in that order on a plate, and a rotary carrier for moving a plate past the same.

42. rlhe combination of a tail-severing mechanism, a cooling bath, and a finishing mechanism arranged to act in that order on a plate, and a rotary carrier for moving a plate past the same.

43. The combination of a tail-severing mechanism, a cooling bath, drying means, and a finishing mechanism arranged to act in that order on a plate, and a rotary carrier for moving a plate past the same.

44. The combination of a cooling bath and a finishingmechanism arranged to act in that order on a plate, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said carrier With one plate in cooling and another in discharging position When the carrier is at rest, and means for discharging the latter plate from and introducing an unfinished plate into the carrier While the carrier is at rest.

a5. The combination of a. cooling bath, drying means, and a finishing mechanism arg ranged to act in that order on a plate, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said carrier With one plate in cooling and another in discharging position when the carrier is at rest, and means for discharging the latter plate :from and introducing an unfinished plate into the carrier while the carrier is at rest.

46. The combination of a tail-severing mechanism, a cooling bath and a finishing mechanism arranged to act in that order on a plate, a carrier rotating past the same and adapted to carry Ya plurality of platesione behind another, means for intermittently rotating lsaid carrier with one plate in cooling and another in discharging position when the carrier is at rest, and means for discharging the latter plate 'from and introducing an unfinished plate into the carrier while the carrier is at rest.

47. The combination of a tail-severing mechanism, a cooling bath, drying means, and a finishing mechanism arranged to actin that order on a plate, carrier rotating-past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said ycarrier With one plate in cooling and another in discharging position when the carrier is at rest, and means for discharging the latter plate from and introducing an unfinished plate into the carrier While the carrier is at rest.

48. The combination of plate finishing means, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said carrier, and means for discharging a finished plate from and introducing an unfinished plate into the carrier While the latter is at rest.

19. The combination of plate finishing and cooling means, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for` intermittently rotating said carrier, and means for discharging a finished plate from and introducing an unfinished plate into the carrier While the latter is at rest.

5,0, The combination of plate finishing, cooling and drying means, a carrier rotating past the same and adapted to carry a plurali-ty ,of plates one behind another, means for intermittently rotating said carrier, and means for discharging a finished` plate from and introducing an unfinished plate into the carrier While the latter is at rest.

5l. The plateV finishing, cooling and drying means, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said carrier, and means for discharging a finished plate from and introducing an unfinished plate into the carrier While the latter is at rest.

52. The combination of a cooling bath, a carrier rotating past the same and adapted to carry a plurality of plates one behind another, means for intermittently rotating said carrier to bring one plate in cooling and another in discharging position when the carrier is at rest, and means for discharging the latter plate from and introllO combina-tion of tail-severinff,

means for effecting the relative ducing another plate into the carrier While the latter is at rest.

The combination of a cooling bath, finishing mechanism and drying means arranged to act simultaneously upon a plate, and means for effecting the relative movement of a plate and said elements.

54. The combination of a cooling bath, finishing mechanism and drying means arranged to act first successively and thereafter simultaneously upon a plate, and means for effecting the relative movement of a plate and said elements.

55. The combination of a cooling bath, finishing mechanism and drying means arranged to act first in that order and thereafter simultaneously upon a plate, vand movement of a plate and said elements.

56. The method of finishing stereotype plates consisting in first cooling the plate by contact with a cooling fluid and then finishing the same. n

57. The method of finishing stereotype plates Which consists in rst cooling the plate by contact with a cooling fluid, drying it, and then finishing the same.

58. The method of finishing stereotype plates consisting in first severing the tail of the plate While hot, then cooling the plate by contact with a cooling fluid, drying it, and then finishing the same.

59. The method of finishing stereotype plates consisting in first severing the tail of the plate While hot, then cooling the plate by contact with a cooling fiuid, and then finishing the same.

In testimony whereof, I have hereunto set my hand.

ROBERT T. JOHNSTON. 

